THE laughing killers who are behind bars but on Facebook can be exposed today.

A Sunday Mail investigation reveals how murderers held in Scottish jails are scoffing at justice and tormenting their victims’ families by posting messages and photos from mobile phones smuggled into their cells.

They include killers Derek Morgan and Lloyd Patterson posing for a planking picture at Bowhouse prison where they are serving life for the savage street murder of 24-year-old Craig Archer.

Sickened relatives and politicians yesterday demanded a clampdown amid mounting concern that jail bosses are turning a blind eye to cons on phones.

Prisoners are banned from having mobiles, tablets and computers in jail and it is a criminal offence if they are caught with one.

But, like the ban on drugs, cons are routinely ignoring it and using smartphones to post regular Facebook updates.

Our investigation found dozens of examples of cons brazenly using social media from their cells, despite the fact that the authorities have seized more than 1700 mobiles in the last three years.

Patterson, 27, and Morgan were each jailed for a minimum of 16 years for stabbing Craig – who they did not know – to death in 2006.

Last night Craig’s father Jim said he was “bitter and angry” at the killers’ antics in jail.

He told how they also “took the lives” of his late wife, Dawn, and Craig’s son Owen, now seven.

Jim now looks after Owen permanently at his home in Glenrothes, just 100 yards from the scene of Craig’s murder.

He said: “I know these men are supposed to be rehabilitated and re-educated in jail but they shouldn’t have this kind of access to social networks.

“I knew in the past that Patterson was on Bebo. I put his name in Google and up it came but I had to stop looking at it because it did my head in knowing he could communicate like that.

“People think when you put them in jail for that long you punish them and make them suffer…but they don’t suffer. They not only took the life of my son, but of my wife and Craig’s son as well.

“Dawn had Crohn’s disease and battled it all her life but she was so upset that she just gave up the fight and died a couple of years later.

“Owen goes to school every day and hears all the other children talking about their mums and dads. He can’t do that – he doesn’t have either of them any more.”

Last month it was revealed that nearly 350 prisoners in England and Wales have been caught posting entries on Facebook.

But convicts in the Scottish system have so little fear that they use their own identities and make no secret of the fact they are posting from jail.

Those exposed by the Sunday Mail include:

?Steven Robertson who was part of a gang who left Craig Wallace brain-damaged after a vicious attack in Edinburgh.

?Hammer yob David Gilday, serving eight years for a brutal attack in a Kirkcaldy bar.

?And murderer Andrew Gibson who stabbed 17-year-old Connor Muir to death in a street fight in Livingston.

Earlier this year we revealed that another murderer, Philip Graham, was on Facebook moaning about missing his daughter’s birthday party and boasting about his mobile.

And it emerged last year that Marmion pub killer Jamie Bain had boasted on the site about buying girlfriend Dionne Hendry a £100,000 Range Rover from behind bars.

Labour MSP Graeme Pearson, former boss of the Scottish Crime and Drug Enforcement Agency, said: “To see prisoners boasting about their exploits is sickening.”

And Tory justice spokesman David McLetchie, added: “It’s clearly time for a crackdown. The prison authorities must use all the technology available to bring a halt to this.”

A spokesperson for justice minister Kenny MacAskill said: “The Scottish Government brought in tough new laws in December 2010 which give courts and prison governors greater powers to punish these types of offences.

“As a result two years can now be added on to the existing sentence of any prisoner.”

A Scottish Prisons Service spokesman said: “The issue of the illegal use of mobile phones in prisons is a matter which we take very seriously.

“We have introduced a variety of security measures to address this issue, including the use of detecting devices, intelligence gathering and targeted searches.

“Since the changes to the law in 2010, there have been 63 convictions of prisoners for the possession of mobile phones in prison.

“If we are made aware of anyone posting illegal or offensive content, or having such content posted on their behalf on social network sites, we have protocols in place with the service providers to have such content removed.”

Michael Anderson

Knife thug Anderson, 31, was jailed for eight years in 2010 for the attempted murder of Kenneth Walker in a Dundee nightclub.

Anderson, who calls himself “Spike” on Facebook, has posted pictures of his bulked-up body and messages saying: “In the jail lol [laugh out loud] been a bad boy”

And: “8 years easy dayz.”

Steven Robertson

He was part of a gang who beat and stamped on Craig Wallace, 30, so hard that he was left brain-damaged in a wheelchair.

After the attack, two years ago, doctors were preparing to turn off life support machines when Craig opened his eyes.

Robertson, 32, from Dalkeith, Midlothian, who was jailed for nearly seven years, had his picture posted on Facebook by jailed killer Philip Graham.

David Gilday

The jailed brute uses the nickname Dubbsy Bhoy Gilday to boast on Facebook about his drinking exploits and how much fun he is having.

Gilday, 32, of Dysart, Fife, was allowed out of Noranside open prison in Forfar, halfway into a 10-year sentence for a brutal assault, when he launched a hammer attack on another man in a Kirkcaldy bar and was jailed for a further eight years.

He boasts on Facebook from his cell at Saughton: “Got such an easy life! F*****g Brilliant apart from the obvious! Haha! :-)”

“Whey hey hey! Just starting to sober up a bit, was pure mwi [mad with it] earlier and it was f******g Brilliant! Yip Yip Yipeeeeee! :-) .”

Andrew Gibson

Killer Gibson, 25, from Livingston, shows off his muscles and tattoos in his cell on another personal site.

Gibson, described as a violent bully, stabbed teenager Connor Muir to death in a street fight almost four years ago. The drug dealer had another three-and-a-half years added to his 10- year jail sentence for culpable homicide for two other knife attacks and supplying Temazepam when he was sentenced in December 2009.

Joseph Hamilton

Jailed for 17 years for the 2004 murder of Paul White, of Pollokshaws, Glasgow, Hamilton is seen posing with a tricolour Irish flag turned round the wrong way, in the cell of fellow con known only as “Dinky Boy” Forrester.

Before he was released from jail several days ago, Forrester posted on his Facebook page: “It’s the rang wiy cause he wis para in case the screws came in haha- F**k the jail.”

Hamilton’s daughter May replies: “Wits he like Dinky. F*k the system :-)”

Lloyd Patterson and Derek Morgan

This killer duo are having a whale of time in their cell at Bowhouse Prison, Kilmarnock, planking and taking pictures on their smuggled mobile phones.

Patterson, 27, who calls himself Cosh Patterson on Facebook, shows off his muscles after training in the prison gym.

Morgan, 25, who climbs on top of Patterson to complete the planking prank, gives a vulgar hand gesture.

One of Patterson’s Facebook “friends” comments: “That’s a good plank” on the picture. The jailed brute answers: “Quality init”.

Patterson also posted pictures of a person in a balaclava holding two huge knives with the caption: “Tooled up haha.”